JP5987787B2 - Shielded wire manufacturing apparatus and shielded wire manufacturing method - Google Patents

Description

  The present invention relates to a technique for manufacturing a shielded electric wire.

  As a technique for forming a shield layer of an electric wire, there is one disclosed in Patent Document 1. In the braided wire manufacturing apparatus of Patent Document 1, a braided wire is manufactured by knitting a conductive wire (hereinafter referred to as a strand) from a bobbin into a tubular shape. And a shielded electric wire is formed by letting the electric wire (henceforth core wire) used as a shield object pass inside the braided wire of an air core.

JP 2012-238423 A

  By the way, although the braided wire manufacturing apparatus of Patent Document 1 manufactures an air-core braided wire, the braided wire is formed by knitting the strands so as to cover the outer periphery of the core wire while supplying the core wire, thereby forming a shielded wire. May be manufactured. In such a shielded wire manufacturing apparatus, in order to form a shielded wire having a predetermined outer diameter in a form in which the outer periphery of the core wire is covered with the braided wire, the braided wire with the core wire disposed on the inner side is formed into a braided die. May be inserted.

  However, if the core wire inserted into the braided wire swings in the direction perpendicular to the central axis during supply, the braided wire formed around the core wire may be in contact with the braided die and disturbed. is there.

  Then, an object of this invention is to suppress disorder of the braided wire which covers a core wire.

A first aspect is a shielded wire manufacturing apparatus that forms a tubular braided wire that covers a periphery of a core wire by knitting a plurality of strands, the core wire supply unit being capable of supplying the core wire onto a supply path A braid mechanism part capable of forming the braided wire by knitting the plurality of strands into a cylindrical net shape covering the outer periphery of the core wire, and the supply path of the core wire through which the braided wire can be inserted. A braided die having an annular inner peripheral surface that surrounds the core, and a core wire restricting portion (inner side) that is disposed in front of the braided die and is capable of restricting movement of the core wire from at least three directions orthogonal to the supply path. Except for forming an insulating core wire having a predetermined outer diameter and a predetermined outer diameter accuracy) .

  A 2nd aspect is a shielded wire manufacturing apparatus which concerns on a 1st aspect, Comprising: The core wire insertion hole part which can penetrate the said core wire is formed in the said core wire control part.

  A 3rd aspect is a shielded wire manufacturing apparatus concerning a 2nd aspect, Comprising: The minimum hole diameter of the said core wire penetration hole part is set to 1.0 to 1.1 times the outer diameter of the said core wire. Yes.

A 4th aspect is a shielded wire manufacturing apparatus which concerns on the 2nd or 3rd aspect, Comprising: The part nearest to the said braiding die among the minimum hole diameter parts of the said core wire penetration hole part is 10 cm or less from the said braiding die. Set to position.

The fifth aspect is a shielded wire manufacturing apparatus according to any one of the second to fourth aspects, wherein the core wire insertion hole portion includes at least an end opposite to the braided die, The hole diameter is gradually reduced toward the braided die.
A 6th aspect is a shielded wire manufacturing apparatus which concerns on a 1st aspect, Comprising: The said core wire control part is provided with two pairs of rollers which press the said core wire from the surrounding 4 directions, and restrict | limit a movement. It is.

A 7th aspect is a shielded wire manufacturing method which manufactures the shielded electric wire which covered the outer periphery of the core wire with the cylindrical braided wire, Comprising : In the shielded wire manufacturing apparatus which concerns on any one 1st-6th aspect, as a step to be executed, a process of supplying the supplying passage of the core wire (a), the braided wire woven in a cylindrical net form covering the outer periphery of the core wire; (b) a plurality of strands A step of forming, (c) a step of inserting the braided wire through a braided die formed with an annular inner peripheral surface surrounding the supply path of the core wire, and (d) before the braided die, And a step of restricting movement of the core wire from at least three directions orthogonal to the supply path.

According to the shielded wire manufacturing apparatus according to the first to sixth aspects, since the core wire restricting portion capable of restricting movement of the core wire from three directions orthogonal to the supply path is disposed before the braiding die, the braiding die The runout of the core wire is regulated at the position. Thereby, disorder of the braided wire which covers a core wire can be suppressed.

  According to the 2nd aspect, since the core wire penetration hole part which can penetrate a core wire is formed in the core wire control part, a core wire can be effectively controlled by simple structure.

  According to the third aspect, since the minimum hole diameter of the core wire insertion hole is set to 1.0 to 1.1 times the outer diameter of the core wire, the movement of the core wire can be more effectively restricted. .

According to the fourth aspect, since the portion closest to the braided die among the minimum hole diameter portions of the core wire insertion hole is set at a position of 10 cm or less from the braided die, the core wire can swing at the position of the braided die. It can suppress more reliably.

  According to the fifth aspect, since the core wire insertion hole has the tapered portion, the movement of the core wire can be restricted while reducing the burden on the core wire.

According to the seventh aspect, the movement of the core wire is restricted at the position of the braiding die because the movement of the core wire is restricted from three directions orthogonal to the supply path before the braiding die. Thereby, disorder of the braided wire which covers a core wire can be suppressed.

It is the schematic which shows a shield electric wire. It is a front view which shows a shielded wire manufacturing apparatus. It is a top view which shows a shielded wire manufacturing apparatus. It is the IV-IV sectional view taken on the line of FIG. It is a figure which shows the 1st modification of a core wire control part. It is a figure which shows the 2nd modification of a core wire control part. It is a figure which shows the 2nd modification same as the above.

  Hereinafter, the manufacturing method of the shielded electric wire manufacturing apparatus 20 and the shielded electric wire 10 according to the first embodiment will be described.

<Shielded wire manufacturing equipment>
FIG. 1 is a schematic view showing a shielded electric wire 10. The shielded electric wire 10 is a wiring material in which the outer periphery of the core wire 18 is covered with a tubular braided wire 11. The braided wire 11 is formed by knitting strands 12 that are a plurality of wire rods into an air-core cylinder (here, a cylinder). As the strand 12, the wire formed by twisting a copper wire or a copper alloy wire or the like is used. The core wire 18 is provided with an insulating coating such as resin around the core wire, and is electromagnetically shielded with the braided wire 11 covering the outer periphery. The shield wire 10 is used as, for example, a power supply line in an automobile or the like. The shielded electric wire 10 is usually used in a form in which the outer periphery of the braided wire 11 is covered with the insulation coating portion 13 as shown in FIG. 1, but here the outer periphery of the core wire 18 is covered with the braided wire 11. Will be described.

  FIG. 2 is a front view showing the shielded electric wire manufacturing apparatus 20, and FIG. 3 is a plan view showing the shielded electric wire manufacturing apparatus 20. The shielded electric wire manufacturing apparatus 20 is an apparatus that manufactures the shielded electric wire 10 by knitting a plurality of strands 12 to form a tubular braided wire 11 that covers the outer periphery of the core wire 18. The shield wire manufacturing apparatus 20 includes a braiding mechanism unit 30, a braiding die 38, a capstan device 40, a core wire supply unit 50, a winding storage unit 60, and a core wire regulating unit 70.

  The core wire supply unit 50 is configured to be able to supply the core wire 18 on the supply path. More specifically, the supply path of the core wire 18 is a path that passes through the inside of the braiding die 38, that is, a path that passes through the inner peripheral side of the plurality of strands 12 knitted by the braiding mechanism 30. It is set along the vertical direction. The core wire supply unit 50 may be supported with respect to the apparatus base 22 (a support mode is omitted in FIG. 1). More specifically, the core line supply unit 50 includes a core line storage unit 52 in which the core line 18 is stored, and a core line guide that guides the core line 18 supplied from the core line storage unit 26 onto the supply path. Part 54.

  The core wire storage unit 52 is formed in a drum shape that can rotate around the central axis, and the core wire 18 is wound around and stored. The core wire storage unit 52 is disposed on the side and below the braiding mechanism unit 30. Then, the core line 18 is sequentially drawn out by the rotation of the core line storage unit 52. The core wire guide portion 54 is formed in a pulley shape that can rotate around the central axis. When the core wire 18 is hooked on the outer peripheral portion, the core wire 18 drawn out from the core wire storage portion 52 is placed on the supply path. To guide.

  The braiding mechanism unit 30 is configured to be able to form the braided wire 11 by braiding a plurality of strands 12 into a cylindrical net shape covering the outer periphery of the core wire 18. Here, the braiding mechanism unit 30 is provided in each of the traveling base 32 provided on the apparatus base 22, the plurality of traveling units 34 provided to be able to travel on the traveling base 32, and the plurality of traveling units 34. And a bobbin 36. In addition, in order to distinguish the some driving | running | working part 34, in the following description, FIG. 3, etc., it may describe with the driving | running | working part 34 (1), 34 (2), 34 (3), 34 (4).

  The traveling base 32 is formed in a disc shape, and has two traveling paths 33A and 33B on the upper surface thereof. Each of the traveling paths 33A and 33B is formed such that a semicircular arc-shaped portion is connected in a circumferential direction around a predetermined axis (here, the central axis of the traveling base 32) to draw a sine curve. In addition, the two traveling paths 33A and 33B have a semicircular arc-shaped portion that protrudes toward the outer peripheral side and a semicircular arc-shaped portion that protrudes toward the inner peripheral side alternately in the circumferential direction around the central axis of the traveling base 32. They intersect each other in a matching state (a half-cycle shift when viewed by a sine curve). That is, the semicircular arc-shaped portion that is convex (concave) on the outer peripheral side of the travel path 33A and the semicircular arc-shaped portion that is concave (convex) on the outer peripheral side of the travel path 33B are connected to form a circle.

  The traveling unit 34 is configured to rotatably support a bobbin 36 in which the wire 12 is wound and accommodated. Then, the strand 12 fed out from the bobbin 36 is wound around the capstan device 40 while being knitted into a cylindrical net shape by the traveling of the traveling portion 34.

  That is, half of the plurality of traveling units 34 are provided so as to be able to travel on one traveling path 33A, and the remaining half of the traveling units 34 are provided so as to be able to travel on the other traveling path 33B. Yes. A travel drive mechanism using a motor, a travel belt and the like is incorporated in the travel base 32, and the travel unit 34 travels on each of the travel paths 33A and 33B by the travel drive mechanism. Specifically, on one travel path 33A, the plurality of travel sections 34 are driven to travel in the direction of rotation on one side around the travel base 32, and on the other travel path 33B, the plurality of travel sections are driven. 34 is driven to travel at intervals in the direction of rotation on the other side around the traveling base 32. In each of the travel paths 33A and 33B, the travel unit 34 travels in opposite directions while exchanging the positions of the inner and outer peripheries. In FIG. 3, the description will be made by paying attention to one point P where the traveling roads 33A and 33B cross each other. After passing P, the traveling unit 34 (2) traveling on the traveling path 33B passes the point P in the counterclockwise direction and from the outer peripheral side toward the inner peripheral side. Thereafter, the traveling unit 34 (3) traveling on the traveling path 33A passes the point P clockwise and from the outer peripheral side toward the inner peripheral side, and thereafter, the traveling unit 34 (4) traveling on the traveling path 33B. ) Passes through the point P from the outer periphery side toward the inner periphery side. Thereby, the strand 12 fed out from the bobbin 36 supported by the traveling unit 34 traveling on the traveling path 33A, and the strand 12 fed out from the bobbin 36 supported by the traveling unit 34 traveling on the traveling path 33B, Are arranged so as to be interchanged between the inner and outer peripheral sides, and are supplied from the outer peripheral side around a predetermined axis, gathered on the central axis of the travel paths 33A and 33B, and knitted into a cylindrical net shape .

  The braiding die 38 is formed in a shape having an annular inner peripheral surface through which the braided wire 11 knitted by the braiding mechanism section 30 is inserted (see FIGS. 2 to 4). The braiding die 38 is supported above the traveling base 32 by a column 24 erected on the apparatus base 22. Here, the braiding die 38 is provided at a position where its own central axis coincides with the central axis extension of the traveling paths 33A and 33B. The inner diameter of the braided die 38 is set such that the minimum diameter portion is the finished outer diameter of the braided wire 11 (here, slightly larger than the outer diameter of the core wire 18). Then, when the braided wire 11 formed by knitting a plurality of strands 12 into a net shape passes through the inside of the braided die 38, the outer peripheral portion of the cylindrical body comes into contact with the inner peripheral surface of the braided die 38 to thereby determine the predetermined value. Molded to the diameter of

  Further, an annular disconnection detector 16 is provided above the braiding die 38 (on the opposite side of the traveling base 32) (see FIG. 2). When the strand 12 is cut halfway and contacts the disconnection detector 16, the disconnection of the strand 12 is detected by the contact. This disconnection detector 16 is also preferably supported by a support.

  The core wire guiding portion 54 is disposed at a position directly below the braiding die 38 and below the traveling base 32. Since the core wire 18 is guided to a position directly below the braided die 38 by the core wire guide portion 54, a penetration for supplying the core wire 18 is provided at the center of the traveling base 32 positioned directly below the braided die 38. A hole is formed.

  Then, the braided wire 11 is knitted by the braiding mechanism 30 in a form covering the outer periphery of the core wire 18 supplied from the core wire supply unit 50, and the shielded electric wire 10 is formed by passing through the braided die 38. The shielded electric wire 10 formed in this way is wound up by the capstan device 40 and is wound and stored in the winding storage unit 60. That is, a capstan device 40 is provided above the braid mechanism 30 and a winding storage unit 60 is provided on the side of the capstan device 40.

  The capstan device 40 is configured to wind the shielded electric wire 10 so that the wire 12 is continuously drawn out from the bobbin 36 and to send the wound shielded electric wire 10 to the take-up storage unit 60. . The capstan device 40 includes a capstan roller 42.

  The capstan roller 42 has a disk-like overall shape, and has a tapered outer peripheral surface 43 that gradually decreases in diameter from one end side toward the other end side, and toward the outer peripheral side at an end portion of the small diameter side. A protruding flange portion 44 is formed. Here, a portion of the taper-shaped outer peripheral surface 43 that is slightly enlarged from the portion having the smallest diameter toward the flange portion 44 is formed. However, this shape is not essential. For example, the outer peripheral surface of the capstan roller 42 may have a shape in which the same diameter portion continues in the axial direction.

  The capstan roller 42 is supported on the traveling base 32 by a support 24 provided on the apparatus base 22 so as to be rotatable about its own central axis (rotary axis). In this support state, the capstan roller 42 is provided in a posture in which the rotation axis is along the horizontal direction and is orthogonal to the vertical direction, which is the winding direction of the braided wire 11. Further, the central axis extension lines of the travel paths 33A and 33B come into contact with the tapered outer peripheral surface 43 at a position larger than the smallest diameter portion of the tapered outer peripheral surface 43 in the axial direction of the capstan roller 42. It has become. Thereby, the shielded electric wire 10 is pulled up as it is, and is wound with the portion on the larger diameter side from the smallest diameter portion of the tapered outer peripheral surface 43 as the winding start point.

  A rotation drive mechanism 48 such as a motor is provided at one end of the rotation shaft portion 46 of the capstan roller 42. By this rotational drive mechanism 48, the capstan roller 42 is rotationally driven in the direction in which the shielded electric wire 10 is wound up.

  In the shielded wire manufacturing apparatus 20, another capstan that further applies tension to the shielded wire 10, an accumulator that absorbs extra length, or the like may be incorporated.

  The winding storage unit 60 is formed in a reel shape capable of winding and storing the shielded electric wire 10 and is rotatably supported by the support frame 26 at a side position of the capstan roller 42. An annular belt 64 is wound around a pulley 46a attached to the rotation shaft portion 46 of the capstan roller 42 and a pulley 62a attached to the rotation shaft portion 62 of the take-up storage portion 60. The rotation of the portion 46 is transmitted to the rotary shaft portion 62 via the annular belt 64. Accordingly, the take-up storage unit 60 is rotated in synchronization with the capstan roller 42.

  Then, when the capstan roller 42 and the take-up storage unit 60 are rotated by the rotation drive mechanism 48, the shielded electric wire 10 is sent to the take-up storage unit 60 while being wound by the capstan roller 42, and the take-up storage unit 60 is housed in a roll.

  The core wire restricting portion 70 is provided so as to restrict the position in the direction orthogonal to the supply path of the core wire 18. The core wire 18 supplied onto the supply path by the core wire supply unit 50 is in a direction perpendicular to the supply path due to the supply state, winding of the formed shield wire 10 by the capstan device 40, external vibration, and the like. May swing. For example, if the core wire 18 swings in the vicinity of the braiding die 38, the braiding wire 11 (elementary wire 12) around the core wire 18 may be pressed against the inner peripheral edge of the braiding die 38 and the braided wire 11 may be disturbed. is there. Therefore, the shielded wire manufacturing apparatus 20 is configured to be provided with a core wire restricting portion 70 so as to suppress the shake of the core wire 18.

  The core wire regulating unit 70 is disposed in front of the braiding die 38 (in other words, in front of the assembly portion of the plurality of strands 12 to be knitted, upstream in the feeding direction of the core wire 18). The movement is restricted at least from three directions orthogonal to the supply path. Here, the core wire restricting portion 70 is formed with a core wire insertion hole 72 through which the core wire 18 can be inserted. That is, the core wire restricting unit 70 can restrict the movement of the core wire in all directions orthogonal to the supply path. It is preferable that the cross-sectional shape in the surface orthogonal to the axial direction of the core wire insertion hole 72 is a circular shape. The minimum hole diameter of the core wire insertion hole 72 is preferably set to 1.0 to 1.1 times the outer diameter of the core wire 18. That is, the minimum hole diameter of the core wire insertion hole portion 72 is large enough to pass through the core wire 18 supplied through the supply path and minimizes movement in the direction perpendicular to the supply path of the core wire 18. It is good to set it small.

  The core wire restricting portion 70 is set such that the portion closest to the braided die 38 (here, the end portion on the braided die 38 side) of the minimum hole diameter portion of the core wire insertion hole 72 is 20 cm or less from the braided die 38. ing. As shown in FIG. 2, the core wire restricting portion 70 may be supported by a column 28 provided on the device base 22. Of the minimum hole diameter portion of the core wire restricting portion 70, the portion closest to the braided die 38 is preferably disposed 10 cm or less from the braided die 38. More preferably, the portion of the core wire regulating portion 70 that is closest to the braided die 38 is disposed at a position where a minimum gap for supplying the strand 12 to the braided die 38 is provided. . The core wire restricting portion 70 may be disposed at the middle position between the braiding die 38 and the core wire guiding portion 54.

  Further, at least a portion of the core wire insertion hole 72 including the end opposite to the braided die 38 may be formed in a tapered shape in which the hole diameter gradually decreases toward the braided die 38 side. Here, the core wire insertion hole 72 is formed in a tapered shape having a hole diameter that becomes smaller toward the braided die 38 as a whole.

  The core wire restricting portion 70 may be formed of a metal material, a synthetic resin material, or a carbon material.

<Operation>
Next, the operation of the shielded wire manufacturing apparatus 20 will be described.

  First, the strands 12 fed out from the bobbins 36 of the braiding mechanism 30 are gathered on the extension of the central axis of each of the traveling paths 33A and 33B and are knitted into a cylindrical net form.

  Further, the core wire 18 is supplied from the core wire supply unit 50 onto the supply path. At this time, the core wire 18 is restricted in movement in the direction orthogonal to the supply path by the core wire restricting portion 70. More specifically, when the core wire 18 tries to swing in a direction orthogonal to the supply path when passing through the core wire insertion hole portion 72, the core wire 18 comes into contact with the inner peripheral surface of the core wire insertion hole portion 72. Restricted movement. That is, the movement of the core wire 18 is restricted by the core wire insertion hole portion 72 so as to be pressed from all directions.

  Then, the braided wire 11 formed by knitting the plurality of strands 12 so as to cover the outer periphery of the core wire 18 passes through the inside of the braided die 38, whereby the shielded electric wire 10 molded to a predetermined outer diameter is obtained. It is formed.

  Thereafter, the formed shielded electric wire 10 is wound up by the capstan device 40 and wound and stored in the winding storage unit 60. More specifically, the shielded electric wire 10 that has reached the tapered outer peripheral surface 43 of the capstan roller 42 is wound a plurality of times, and is drawn outward from the portion wound around the collar portion 44 to be taken up and stored. To 60. Since the shielded electric wire 10 is wound around the tapered outer peripheral surface 43 a plurality of times, slippage between the tapered outer peripheral surface 43 and the shielded electric wire 10 is suppressed, and the rotational driving force of the capstan roller 42 is a force for winding the shielded electric wire 10. Will be transmitted more reliably.

<Effect>
According to the shielded wire manufacturing apparatus 20 and the shielded wire manufacturing method configured as described above, the core wire restricting portion 70 capable of restricting movement of the core wire 18 from three directions orthogonal to the supply path is arranged in front of the braided die 38. Therefore, the runout of the core wire 18 is restricted at the position of the braiding die 38. Thereby, it can suppress that the core wire 18 presses the braided wire 11 and the braided wire 11 contacts the braided die 38, and the braided wire 11 covering the core wire 18 can be prevented from being disturbed.

  Moreover, since the core wire insertion hole 72 into which the core wire 18 can be inserted is formed in the core wire restricting portion 70, the movement of the core wire 18 can be effectively restricted with a simple configuration.

  Moreover, since the minimum hole diameter of the core wire insertion hole 72 is set to 1.0 to 1.1 times the outer diameter of the core wire 18, the movement of the core wire 18 can be more effectively restricted.

  Further, since the portion closest to the braided die 38 among the minimum hole diameter portions of the core wire insertion hole 72 is set at a position of 20 cm or less from the braided die 38, the core wire 18 is swung at the position of the braided die 38. It can suppress more reliably.

  Moreover, since the core wire insertion hole 72 has a tapered portion, the movement of the core wire 18 can be restricted while reducing the burden on the core wire 18.

<Modification>
FIG. 5 is a diagram showing the core wire restricting portion 170 according to the first modification. The core wire restricting portion 170 is formed in a cylindrical shape and is erected on the apparatus base 22. More specifically, the core wire restricting portion 170 is located at a position where the central axis coincides with the central axis of the braided die 38 and the central axes of the travel paths 33A and 33B, similarly to the core wire restricting portion 70 according to the above embodiment. Is provided. The core wire insertion hole 172 of the core wire restricting portion 170 may be set to a hole diameter that is 1.0 to 1.1 times the outer diameter of the core wire 18. The inner diameter of the outlet portion of the core wire regulating portion 170 may be set to be smaller than the inner diameter of the front portion thereof. Moreover, the position of the front-end | tip part of the core wire control part 170 is set within 20 cm from the braided die 38 (preferably within 10 cm, more preferably a position with a minimum gap for supplying the strand 12). Good.

  6 and 7 are diagrams showing a core wire restricting portion 270 according to a second modification. The core wire restricting unit 270 includes two pairs of rollers 272 and 274. Each pair of rollers 272 and 274 is supported in a posture in which the central axis is along a direction (here, a horizontal direction) perpendicular to the supply path of the core wire 18. Further, each pair of rollers 272 and 274 is provided at a position where an interval through which the core wire 18 can pass through the supply path of the core wire 18 is provided. Here, each pair of rollers 272 and 274 is supported in a posture in which the central axis is parallel for each pair. In addition, one pair of rollers 272 and the other pair of rollers are provided with an interval in the direction along the supply path of the core wire 18 in a posture in which the central axes are orthogonal to each other. Each pair of rollers 272 and 274 may be supported, for example, so as to be rotatable about the central axis with respect to a support column erected on the apparatus base 22.

  The distance between the pair of rollers 272 and the distance between the pair of rollers 274 are preferably dimensions that allow the movement of the core wire 18 to be restricted from two directions in each pair. It is preferably set to 0 to 1.1 times. By providing the two pairs of rollers 272 and 274, the core wire 18 can be pressed and restrained from moving in the four directions around it.

  In addition, in FIG. 6, FIG. 7, since the roller long in the center axis direction is used, each pair of rollers 272, 274 is provided at intervals in the direction along the supply path of the core wire 18, When the dimension in the central axis direction is relatively small, two sets of rollers may be arranged so that each central axis is located on the same plane perpendicular to the supply path.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Shielded electric wire 11 Braided wire 12 Elementary wire 18 Core wire 20 Shielded electric wire manufacturing apparatus 30 Braided mechanism part 38 Braided die 50 Core wire supply part 70 Core wire regulation part 72 Core wire insertion hole part

Claims (7)

A shielded wire manufacturing apparatus that forms a tubular braided wire covering a periphery of a core wire by knitting a plurality of strands,
A core wire supply unit capable of supplying the core wire onto a supply path;
A braiding mechanism that can form the braided wire by knitting the plurality of strands into a cylindrical net shape covering the outer periphery of the core wire;
A braided die in which an annular inner peripheral surface that can be inserted through the braided wire and surrounds the supply path of the core wire;
A core wire restricting portion disposed in front of the braiding die and capable of restricting movement of the core wire from at least three directions orthogonal to the supply path (insulating core wire passing through the inside is formed with a predetermined outer diameter and a predetermined outer diameter accuracy. Except)
A shielded wire manufacturing apparatus. The shielded wire manufacturing apparatus according to claim 1,
The shielded wire manufacturing apparatus, wherein a core wire insertion hole portion through which the core wire can be inserted is formed in the core wire regulating portion. The shielded wire manufacturing apparatus according to claim 2,
The shielded wire manufacturing apparatus, wherein the minimum hole diameter of the core wire insertion hole is set to 1.0 to 1.1 times the outer diameter of the core wire. A shielded wire manufacturing apparatus according to claim 2 or claim 3,
The shielded wire manufacturing apparatus, wherein a portion of the minimum hole diameter portion of the core wire insertion hole portion closest to the braided die is set at a position of 10 cm or less from the braided die. The shielded wire manufacturing apparatus according to any one of claims 2 to 4,
The shielded wire manufacturing apparatus, wherein at least a portion of the core wire insertion hole portion including an end opposite to the braided die is formed in a tapered shape in which the hole diameter gradually decreases toward the braided die.   The shielded wire manufacturing apparatus according to claim 1,
  The said core wire control part is a shielded wire manufacturing apparatus provided with two pairs of rollers which hold | maintain the said core wire from the surrounding four directions, and restrict | limit a movement. A shielded wire manufacturing method for manufacturing a shielded wire in which the outer periphery of a core wire is covered with a cylindrical braided wire,
As a process performed in the shielded wire manufacturing apparatus according to any one of claims 1 to 6,
(A) supplying the core wire onto a supply path;
(B) forming the braided wire by knitting the plurality of strands into a cylindrical net shape covering the outer periphery of the core wire;
(C) inserting the braided wire through a braided die formed with an annular inner peripheral surface surrounding the supply path of the core wire;
(D) Before the braiding die, the step of restricting movement of the core wire from at least three directions orthogonal to the supply path;
A method of manufacturing a shielded electric wire.

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